It is likely Slashdot will still be here when HN is gone.
There's a lesson in that.
My gut feeling says no. I used to read Slashdot as much as I now read HN or Reddit. I hardly ever go there any more, and when I do it just doesn't seem interesting.
For me, Slashdot lacks the buzz it used to have.
They're sinking in the last year or so while HN is rising somewhat.
It is likely Slashdot will still be here when HN is gone.
There's a lesson in that.